Analysis

  • max time kernel
    135s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-11-2024 02:11

General

  • Target

    058e2c02b8cfb93b480ea8cfac08e967b39631a579256ebee27fb7472194c1ea.exe

  • Size

    758KB

  • MD5

    8e2827146c4c433affba78c88fd685db

  • SHA1

    de632114a70a9ad4b16ed686e48477f398531ae0

  • SHA256

    058e2c02b8cfb93b480ea8cfac08e967b39631a579256ebee27fb7472194c1ea

  • SHA512

    ba45a34ecb7d176392c43cd8b80d8181e77f1cc6536459163439a4456389a6208e053bc6a449f7974595d44b69a269833958bfe1ede7498f31538b84ddbff151

  • SSDEEP

    12288:fn9InteYPjOFGGCA2ythZoESN0vXMgmW3oSrnvuiYZftZvskj2/Q4AyrrRPdh:fEPtpy/2ESNimW3oovZYB2o4JPd

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

66.63.187.113:1664

Mutex

a376f716-2f77-4943-a431-3a3bcb53b7c0

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    66.63.187.113

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-08-05T03:49:33.827385136Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1664

  • default_group

    CAT

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    a376f716-2f77-4943-a431-3a3bcb53b7c0

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    66.63.187.113

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Nanocore family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\058e2c02b8cfb93b480ea8cfac08e967b39631a579256ebee27fb7472194c1ea.exe
    "C:\Users\Admin\AppData\Local\Temp\058e2c02b8cfb93b480ea8cfac08e967b39631a579256ebee27fb7472194c1ea.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\058e2c02b8cfb93b480ea8cfac08e967b39631a579256ebee27fb7472194c1ea.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2352
    • C:\Users\Admin\AppData\Local\Temp\058e2c02b8cfb93b480ea8cfac08e967b39631a579256ebee27fb7472194c1ea.exe
      "C:\Users\Admin\AppData\Local\Temp\058e2c02b8cfb93b480ea8cfac08e967b39631a579256ebee27fb7472194c1ea.exe"
      2⤵
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4516
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "AGP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2100.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5004
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /create /f /tn "AGP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2C6B.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\058e2c02b8cfb93b480ea8cfac08e967b39631a579256ebee27fb7472194c1ea.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vhznxkhj.e53.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp2100.tmp

    Filesize

    1KB

    MD5

    50ee269eaf032086bd66936208c1cc15

    SHA1

    2a8b857f2d11997668ded0237ac0473c9bd9cf42

    SHA256

    d11ae3f32e1f22956423a6211cc8c0f4e6442a25e6f325e3045062a173f6c72a

    SHA512

    71357c1a5aca3e6ba762af7b7c717d6f2e21614919fdb167f5463a959260428f14fff9e4d2425ea58c8379c7259c95281fd8c2b6b455032535c11f42026bccc1

  • C:\Users\Admin\AppData\Local\Temp\tmp2C6B.tmp

    Filesize

    1KB

    MD5

    7a81ae69c04c8d95261eb5f490b7f869

    SHA1

    9f4f484d306fea15b2e7f9f16db660833bb1f8ce

    SHA256

    ce3933e772f663a834335cc2071e5e7b2d49a065b51d84a259054b8ef663e785

    SHA512

    8260ab83106752a488e164bbed63ef334d34399bc9a5c09a0cfceba6aef48eafe5c64e4dfbd353ac3edfff2523b16c2b0287d34833a293c4436e068fae656de8

  • memory/2352-69-0x00000000079A0000-0x00000000079A8000-memory.dmp

    Filesize

    32KB

  • memory/2352-32-0x0000000005D60000-0x00000000060B4000-memory.dmp

    Filesize

    3.3MB

  • memory/2352-72-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/2352-68-0x00000000079C0000-0x00000000079DA000-memory.dmp

    Filesize

    104KB

  • memory/2352-67-0x00000000078C0000-0x00000000078D4000-memory.dmp

    Filesize

    80KB

  • memory/2352-66-0x00000000078B0000-0x00000000078BE000-memory.dmp

    Filesize

    56KB

  • memory/2352-48-0x0000000007510000-0x0000000007542000-memory.dmp

    Filesize

    200KB

  • memory/2352-65-0x0000000007880000-0x0000000007891000-memory.dmp

    Filesize

    68KB

  • memory/2352-64-0x0000000007900000-0x0000000007996000-memory.dmp

    Filesize

    600KB

  • memory/2352-63-0x00000000076F0000-0x00000000076FA000-memory.dmp

    Filesize

    40KB

  • memory/2352-62-0x0000000007680000-0x000000000769A000-memory.dmp

    Filesize

    104KB

  • memory/2352-16-0x0000000004D90000-0x0000000004DC6000-memory.dmp

    Filesize

    216KB

  • memory/2352-17-0x0000000005510000-0x0000000005B38000-memory.dmp

    Filesize

    6.2MB

  • memory/2352-18-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/2352-21-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/2352-24-0x0000000005CF0000-0x0000000005D56000-memory.dmp

    Filesize

    408KB

  • memory/2352-61-0x0000000007CC0000-0x000000000833A000-memory.dmp

    Filesize

    6.5MB

  • memory/2352-60-0x0000000007570000-0x0000000007613000-memory.dmp

    Filesize

    652KB

  • memory/2352-33-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/2352-49-0x0000000070920000-0x000000007096C000-memory.dmp

    Filesize

    304KB

  • memory/2352-23-0x00000000054A0000-0x0000000005506000-memory.dmp

    Filesize

    408KB

  • memory/2352-19-0x0000000005380000-0x00000000053A2000-memory.dmp

    Filesize

    136KB

  • memory/2352-38-0x0000000006340000-0x000000000635E000-memory.dmp

    Filesize

    120KB

  • memory/2352-39-0x00000000068A0000-0x00000000068EC000-memory.dmp

    Filesize

    304KB

  • memory/2352-59-0x0000000006930000-0x000000000694E000-memory.dmp

    Filesize

    120KB

  • memory/3040-10-0x00000000051A0000-0x000000000521A000-memory.dmp

    Filesize

    488KB

  • memory/3040-9-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/3040-6-0x0000000005A40000-0x0000000005ADC000-memory.dmp

    Filesize

    624KB

  • memory/3040-0-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

    Filesize

    4KB

  • memory/3040-4-0x00000000057F0000-0x00000000057FA000-memory.dmp

    Filesize

    40KB

  • memory/3040-1-0x0000000000CB0000-0x0000000000D74000-memory.dmp

    Filesize

    784KB

  • memory/3040-2-0x0000000005E30000-0x00000000063D4000-memory.dmp

    Filesize

    5.6MB

  • memory/3040-3-0x0000000005740000-0x00000000057D2000-memory.dmp

    Filesize

    584KB

  • memory/3040-7-0x0000000005A00000-0x0000000005A1C000-memory.dmp

    Filesize

    112KB

  • memory/3040-8-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

    Filesize

    4KB

  • memory/3040-15-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/3040-5-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/4516-26-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/4516-77-0x0000000006A00000-0x0000000006A1A000-memory.dmp

    Filesize

    104KB

  • memory/4516-14-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/4516-44-0x00000000061C0000-0x00000000061CA000-memory.dmp

    Filesize

    40KB

  • memory/4516-46-0x00000000062A0000-0x00000000062AA000-memory.dmp

    Filesize

    40KB

  • memory/4516-45-0x0000000006260000-0x000000000627E000-memory.dmp

    Filesize

    120KB

  • memory/4516-73-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/4516-74-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/4516-76-0x00000000069F0000-0x0000000006A02000-memory.dmp

    Filesize

    72KB

  • memory/4516-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/4516-78-0x0000000006A30000-0x0000000006A3E000-memory.dmp

    Filesize

    56KB

  • memory/4516-79-0x0000000006A40000-0x0000000006A52000-memory.dmp

    Filesize

    72KB

  • memory/4516-80-0x0000000006A50000-0x0000000006A5C000-memory.dmp

    Filesize

    48KB

  • memory/4516-81-0x0000000006A60000-0x0000000006A6E000-memory.dmp

    Filesize

    56KB

  • memory/4516-82-0x0000000006A70000-0x0000000006A84000-memory.dmp

    Filesize

    80KB

  • memory/4516-83-0x0000000006A80000-0x0000000006A90000-memory.dmp

    Filesize

    64KB

  • memory/4516-84-0x0000000006AA0000-0x0000000006AB4000-memory.dmp

    Filesize

    80KB

  • memory/4516-85-0x0000000006AC0000-0x0000000006ACE000-memory.dmp

    Filesize

    56KB

  • memory/4516-86-0x0000000006AD0000-0x0000000006AFE000-memory.dmp

    Filesize

    184KB

  • memory/4516-87-0x0000000006B00000-0x0000000006B14000-memory.dmp

    Filesize

    80KB